Lock mechanism.



No. 833,175. 'PATENTED OCT. 16, 1906.

P. PAPENFOTH.

LOGK MECHANISM. APPLICATION FILED we. 31, 1005.

2 SHEETS-SHEET 1,

' IDAZ/L Eva/ram m @51 %z.% @itozmaws THE "cams PETERS cm, wnsumarolv. :2. a

PATENTED OCT. 16, 1 906.

P. PAPENFOTH.

LOOK MECHANISM.

APPLICATION FILED AUG. 31, 1905.

2 SHEETS-SHEET 2.

M ullnllllllllllllll I l"""' .JH'I'W" rill!!! e 8 v Iln l 5/ 2- i g I 10 1 7' is f? cm, WASHINDTDN, 17. c4

TH: "chars PETERS UNITED STATES PATENT oninon PAUL PAPENFOTH, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL & ERWIN MANUFACTURING COMPANY, OF NEW BRIT AIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK MECHANISM.

Specification of Letters Patent.

Patented Oct. 16, 1906.

To all whom it may concern.-

Be it known that 1, PAUL PAPENFOTH, a citizen of the United States, residing at New Britain, Hartford county, Connecticut, have invented certain new and useful Improvements in Look Mechanism, of which the following is a full, clear, and exact description.

My invention relates to locks, particularly such as may be used upon bath-room doors.

The object of my invention is to provide a lock having one bolt that may be operated from one side of the door by a suitable key, also having an auxiliary dead bolt operated from the other side by a thumb-turn and mechanism so that it may be drawn from the opposite side by the key, all of which will be more fully described in the following specification.

Figure 1 is a side view of a lock embodying my invention with the cover partially broken away, showing both bolts drawn and the auxiliary bolt also dotted in extended position. Fig. 2 is a rear view with the end of the casing broken away. Fig. 3 is a bottom plan view with the bottom of the casing in section and showing the auxiliary bolt and adjacent mechanism. Fig. 4 is a detail view of a dog for the hub of the thumb-turn. Fig. 5 is a detail view of a tumbler and spring for the dog. Fig. 6 is a detail'view of the coverplate for the dog and tumbler. Fig. 7 is a view corresponding to Fig. 1, but with the main bolt extended. Fig. 8 is a view corresponding to Fig. 1 with the upper part of the lock broken away, showing the auxiliary bolt extended, the tumbler for the main bolt and the cover-plate of the dog being removed. Fig. 9 is a detail view of the thumb roll-b ack for operating the auxiliary thumb-bolt.

1 is the outer side plate of the casing for the lock. 2 is a cover or inner side plate for said casing.

3 is the main bolt held in inner or outer position by tumblers 1, of any suitable design and adapted to be operated by a key 12.

5 is an auxiliary or dead bolt that may be shot or drawn by roll-back 6 or drawn by the ke The roll-back 6, bolt 3, and easing are so constructed that either side may be accessible; but it will be understood that the rollback will be accessible only from the inside of the door and the main key-bolt from the outside, the opposite sides being covered by the frame of the door. This allows for the placing of a lock of this type upon a door swinging either to the right or left.

7 is a swinging dog pivoted on the stud 8, carried by bolt 3 and held in its downward position by means of a spring 9, thus exerting pressure on the roll-back 6 to rotate it in its bearings to the right or left.

10 and 11 are lugs for limiting the movement of roll-back 6.

12 is a key for withdrawing auxiliary bolt 5 and operating bolt 3.

13 is a tumbler pivoted on stud 8 and cooperating with dog 7. The pin 14 is carried by the bolt 3 and limits the movement of dog 7 by means of the slot 15, through which it projects.

16 is a cover-plate for holding the tumbler 13 in place and is itself held in place by means of a guiding projection 17 upon the cover-plate 2. V

18 is a lug upon the dog 7, affording a seat for the cover-plate 16. It is also acted upon by the key 12 when the auxiliary bolt 5 is to be withdrawn by the key.

19 is a nose or projection upon the dog 7. When the bolt 3 is retracted by the key 12, the key engages the lug 18 and tilts the dog 7,

whose nose 19 strikes and turns the roll-back 6, thereby withdrawing the auxiliary bolt 5.

20 is ablocking-dog pivoted on the casing 1 and adapted to engage a projection 21 upon the auxiliary bolt 5 and a projection 22 on the main bolt 3 whenever either bolt is extended, thereby locking the unextended bolt until the other bolt is withdrawn. When the main or upper bolt 3 is extended, as shown in Fig. 7, the rear end of the dog 7 stands in the path of movement of roll-back 6 and prevents its operation. The upper bolt 3 may be operated by an ordinary key unless the auxiliary bolt 5 is shot, thereby bringing the upper nose of the dog 20 in contact with proeither one of two positions, and key-operable 7 and a dog carried by said main bolt for turnin the roll-back and retracting the auxiliary b0 t through the medium thereof.

4. In a look, a main bolt, an auxiliary bolt, a roll-back for operating s'aid auxiliary bolt, a dog carried by said main bolt for turning the roll-back, and a spring for holding the swinging dog against the roll-back.- I

5. In a look, a main bolt, an auxiliary bolt,

' a roll-back for sliding said auxiliary bolt, a

swinging dog for withdrawing said auxiliary bolt, a spring-pressed tumblerf'or' pressing said swinging dog against said roll-back, and

1 a pivoted dog for holding said main bolt when said auxiliary bolt is shot. l

6. In a lock, amain bolt, fa spring-pressed tumbler therefor, an auxiliary bolt, a rollback therefor, and a dog carried by the main bolt for preventing the operation ofsaid rollback when said main bolt is extended."

7. In a lock, a main key-operable.bolt, an

auxiliary bolt, a rollback for-operating said auxiliaryb'olt, and a yieldingdog movable with said main bolt for preventing the opera tion of said roll-back when said main bolt is extended. I

8. In a lock, a bolt, a roll-back for operating said bolt, a stop .for limiting the movement of said roll back when extending said bolt, means for holding said roll-back against said stop, key-operable means for retracting said holding means and returning said bolt and roll-back to the irnormal positions.

9. In a lock, a bolt, a roll-back for operating said bolt, a stop for limiting the movementof said roll-back when extending said bolt, means for holding said roll-back against said stop, key-operable means for retracting said holding me'ans and returning said bolt and roll-back to their normal positions, a bolt normally operable by the same key and means for preventing the extension of said key-operable bolt when thefirstbolt is extended.

10. In a lock, 'a main bolt, an auxiliary bolt, a roll-back for'operating said auxiliary bolt, a yielding dog carried by said main bolt and cooperating with said roll-back to hold it yieldingly in its normal position when both bolts are retracted, but to prevent the operation of said roll-back when the main bolt is extended.

1 1. In a look", a key-operable'main bolt, an auxiliary bolt, a roll-back for extending and retracting said auxiliary bolt and means controlled by the key when turned in one direction for retracting said auxiliary bolt and resetting said roll-back, said main bolt being adapted to be extended by said key when rotated in the opposite direction.

PAUL PAPENFOTH. Witnesses: a

M. S. WIARDL C. E. RUssELL. 

